College of Staten Island Athletics

Daddio joined the Dolphins' coaching staff in 2014, and is charged primarily with working with the pitching staff and bullpen.  In 2020, he was elevated to Associate Head Coach where he also manages the assistant coaches on the team.

As an assistant coach he spent five years at Port Richmond High School, before a subsequent five-year stint at Moore Catholic HS. After a lone season at Curtis HS, he started a near 10-year run as the assistant with St. Peter's HS. That experience gave Daddio a hands-on feel of the high school coaching landscape on Staten Island, which allows him to be a necessary cog in the recruiting wheel.

Alongside his coaching duties, Daddio was a three-time CUNYAC All-Star at CSI during his playing days, winning the 1986 batting title that year, sporting a career batting average of .399, the 5th highest in school history. In 1986, he signed a professional free-agent contract with Major League Baseball's Detroit Tigers.